Home / 20,197,812.80-30,307,216.80-8,839,409.60

Finding the Fourth Proportional to 20,197,812.80, 30,307,216.80 and 8,839,409.60

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Solution

The fourth proportional to 20,197,812.80, 30,307,216.80 and 8,839,409.60 is: 13,263,708.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197,812.80 : 30,307,216.80 = 8,839,409.60 : x
  2. Step 2: Convert to fraction form
    20,197,812.80/30,307,216.80 = 8,839,409.60/x
  3. Step 3: Cross multiply
    20,197,812.80x = 30,307,216.80 × 8,839,409.60
  4. Step 4: Simplify right side
    20,197,812.80x = 267,897,903,131,201.28
  5. Step 5: Solve for x
    x = 267,897,903,131,201.28/20,197,812.80
  6. Step 6: Final answer
    x = 13,263,708.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.